You might think the answer to this question is easy. I mean, I've invited her for Shabbos dinner so many times I can't count. But if you're thinking she finally said yes to me, your saying that just pushed me over the borderline. In Israel for her extremely well-attended concerts (to feel almost like you were there, see Benji's exhaustive rundown), Madonna, just like any visitor, needed a place for Shabbat. So who's she staying with? Some 'yahu.
Possible topics for discussion may include taking your kids to Auschwitz, how to become an Israeli journalist without really trying, and how you too can have challah arms. If they become an item, they'll be known as Madonnayahu. If they break up, Madonna gets to keep the name, in case she goes on tour with Matisyahu.
Whether you're the world's most famous female pop star, the Prime Minister of Israel, or civilians like the rest of us, wishing you all a Shabbat shalom.